Math question 3 and 4

3.) B = 72 m^2

4.) V = 564 m^3

Step-by-step explanation:

3.) Find the area of the base:

The base is shaped like a triangle so we need to use this formula: A = bh/2

A = bh/2

A = (9)16/2

A = 144/2

A = 72

The base measures 72 square meters.

4.) Find the volume of the pyramid:

V = Bh/3

V = (72)23.5/3

The height is listed as 23 1/2, but it can be written as a decimal as shown above.

V = 1,692/3

V = 564

The volume is 564 cubic meters.

20

step-by-step explanation:

pentagon

step-by-step explanation:

the coordinates   a(5, -2), b(3,-1),c(-4,-4) d(-3,8) and e(-1,4) forms the vertices of the polygon when they are connected in order.

in order to classify that which polygon is it with the given coordinates, first count the number of vertices and then count the number of sides it can make with these vertices.

since, the given coordinates have five vertices, therefore, it will make five sides. moreover, pentagon is regular in nature therefore it will be convex.

now, a polygon with five sides is known as pentagon, therefore, the given polygon is the pentagon.